ThinkGrow’s Model One FR‑1 is a 4‑foot modular LED bar for the Model One system. It provides two independently controllable spectrum channels—full‑spectrum white and far‑red—enabling spectrum shaping across veg and flower when paired with a TrolMaster controller. The FR‑1 draws 90 W and delivers over 234 µmol/s PPF. The bar measures 45.35 x 2.68 x 2.20 inches and weighs 1.17 kg. Rated L90 > 54,000 hours and IP56, it uses Samsung white‑based diodes and is intended to mount at least 6 inches above the canopy. Power cord and driver are sold separately; use one TLD‑2 two‑channel driver per bar. Typical use is as supplemental top lighting or timed far‑red application to influence photomorphogenic responses and speed flowering within a Model One array.